That's why I mentioned Green Mountain Audio. They do not sound like a box speaker, instead conveying the crack of energized music. A used pair of Continuum 3s would be in your budget range.
Zu Definitions would also meet your requirements, but I doubt that a used pair could be had for $4-5K.
I hear that Pi Loudspeakers are very good. I've not heard them myself.
Finally, if Klipschorns are not an option--they take up no space in the room--you might consider a vintage pair of La Scalas. You will want to do a few modifications to them, which are easy to do. We had a pair mated with an ACI Titan subwoofer, and not one person who heard our system ever knew that we used a sub, the sound was that seamless. Including modifications to the speakers, the entire package would run you around $2200. If mated to the proper amp, you will have the sound you're after.
Zu Definitions would also meet your requirements, but I doubt that a used pair could be had for $4-5K.
I hear that Pi Loudspeakers are very good. I've not heard them myself.
Finally, if Klipschorns are not an option--they take up no space in the room--you might consider a vintage pair of La Scalas. You will want to do a few modifications to them, which are easy to do. We had a pair mated with an ACI Titan subwoofer, and not one person who heard our system ever knew that we used a sub, the sound was that seamless. Including modifications to the speakers, the entire package would run you around $2200. If mated to the proper amp, you will have the sound you're after.